增刚成核剂NAA-3在抗冲共聚PP中的应用性能研究  

Study on Application of NAA-3 Stiffeningnucleating Agent in Impact Copolymerization PP

作　　者：黄秀娴 莫志华 黄训能 卢喜 谭诗豪 HUANG Xiuxian;MO Zhihua;HUANG Xunneng;LU Xi;TAN Shihao(GCH TECHNOLOGY Co.,Ltd.,Guangdong Guangzhou 510540,China)

机构地区：[1]呈和科技股份有限公司,广东广州510540

出　　处：《广州化工》2024年第22期54-56,共3页GuangZhou Chemical Industry

摘　　要：研究开发了一种羧酸盐类增刚成核剂NAA-3,此成核剂化学性质稳定,在抗冲共聚PP中具有显著的成核效果。抗冲共聚PP具有高热变形温度、良好的耐划痕性以及低温抗冲击性和良好的刚韧平衡性,制品成型周期短,成型加工性能优异的特点,但树脂的冲击强度还受结晶度、晶粒尺寸、橡胶相大小、形态、分布及基体结合的紧密度等的影响[1]。经增刚成核剂NAA-3改性后的抗冲共聚PP的晶型尺寸细小,晶核多,分布均匀,结晶速率快等特点。增刚成核剂NAA-3不仅在抗冲共聚PP改性中极易分散,而且可显著缩短其成型周期,大大地提高PP结晶温度,增强PP制品刚性,提高制品表面光泽度,提高制品尺寸稳定性,减少制品收缩,防止制品应力开裂,提升抗冲共聚PP机械和热学等性能,可广泛应用于汽车、家用制品等领域,尤其在减小制品的翘曲变形方面具有突出的作用,深受广大用户好评。A carboxylate stiffeningnucleating agent NAA-3 was developed.The nucleating agent is chemical property stable and has a significant nucleating effect in impact copolymerized PP.The impact copolymerized PP has the characteristics of high heat deformation temperature,good scratch resistance,low temperature impact resistance and good balance of rigidity and toughness,short molding cycle and excellent processing performance.However,the impact strength of the resin is also affected by crystallinity,grain size,rubber phase size,morphology,distribution and matrix bonding density[1].The impact copolymerized PP modified by toughening nucleating agent NAA-3 has the characteristics of small crystal size,many crystal cores,uniform distribution and fast crystallization rate.The toughening nucleating agent NAA-3 can not only disperse easily in the modification of impact copolymerized PP,but also shorten the molding cycle,increase the crystallization temperature of PP,strengthen the rigidity of PP products and improve the surface gloss of products,improve dimensional stability,reduce shrinkage,prevent stress cracking,improve mechanical and thermal properties of impact copolymerized PP,which can be widely used in automotive and household products,especially in the reduction of warpage deformation of products had a prominent role,well received by the majority of users.

关 键 词：抗冲共聚PP 增刚成核剂NAA-3 应用性能 翘曲 

分 类 号：TQ325[化学工程—合成树脂塑料工业]